Insider Buying and Selling - CCOI

Transaction	Filed	Name	Type	Shares @ Price	Value	Balance change		Ownership
05/28/2026	05/28/2026	Ferguson Lewis H Director	Sell	-2,800 @ $20.36	($57,008.00)	21,094	(-11.72%)	Direct
05/14/2026	05/18/2026	Kennedy Sheryl Lynn Director	Sell	-3,300 @ $16.22	($53,518.41)	10,245	(-24.36%)	Direct
03/06/2026	03/09/2026	Kilmer Henry W VP OF NETWORK STRATEGY Officer	Sell	-2,400 @ $23.35	($56,040.00)	41,000	(-5.53%)	Direct
03/05/2026	03/05/2026	Ferguson Lewis H Director	Sell	-2,206 @ $23.03	($50,804.18)	20,449	(-9.74%)	Direct
03/05/2026	03/05/2026	Kennedy Sheryl Lynn Director	Sell	-3,300 @ $22.99	($75,867.33)	10,100	(-24.63%)	Direct
03/05/2026	03/05/2026	Weed Thaddeus Gerard VICE PRESIDENT, CFO CFO	Sell	-4,850 @ $22.63	($109,755.50)	202,750	(-2.34%)	Direct
12/11/2025	12/12/2025	Weed Thaddeus Gerard VICE PRESIDENT, CFO CFO	Sell	-7,300 @ $23.99	($175,127.00)	88,200	(-7.64%)	Direct
12/08/2025	12/08/2025	Kilmer Henry W VP OF NETWORK STRATEGY Officer	Sell	-4,800 @ $19.79	($94,992.00)	33,800	(-12.44%)	Direct
12/02/2025	12/02/2025	Ferguson Lewis H Director	Sell	-4,000 @ $20.34	($81,340.80)	19,267	(-17.19%)	Direct
11/11/2025	11/12/2025	Kennedy Sheryl Lynn Director	Sell	-2,400 @ $21.34	($51,220.56)	10,012	(-19.34%)	Direct
09/05/2025	09/05/2025	Kilmer Henry W VP OF NETWORK STRATEGY Officer	Sell	-2,400 @ $36.99	($88,776.00)	36,200	(-6.22%)	Direct
09/02/2025	09/02/2025	Weed Thaddeus Gerard VICE PRESIDENT, CFO CFO	Sell	-4,900 @ $36.98	($181,202.00)	93,100	(-5.00%)	Direct
08/21/2025	08/21/2025	Kennedy Sheryl Lynn Director	Sell	-2,000 @ $36.35	($72,700.00)	10,017	(-16.64%)	Direct
08/08/2025	08/11/2025	Schaeffer Dave CHAIRMAN, CEO, AND PRESIDENT CEO Director	Sell	-818,909 @ $27.50	($22,519,997.50)	697,143	(-54.02%)	Direct
08/07/2025	08/08/2025	Schaeffer Dave CHAIRMAN, CEO, AND PRESIDENT CEO Director	Sell	-1,840,669 @ $32.60	($60,005,809.40)	1,516,052	(-54.84%)	Direct
06/16/2025	06/16/2025	Schaeffer Dave CHAIRMAN, CEO, AND PRESIDENT CEO Director	Sell	-70,000 @ $47.11	($3,297,609.00)	3,356,721	(-2.04%)	Direct
06/13/2025	06/16/2025	Schaeffer Dave CHAIRMAN, CEO, AND PRESIDENT CEO Director	Sell	-55,000 @ $47.40	($2,607,203.50)	3,426,721	(-1.58%)	Direct
06/12/2025	06/12/2025	Schaeffer Dave CHAIRMAN, CEO, AND PRESIDENT CEO Director	Sell	-55,000 @ $47.86	($2,632,372.00)	3,481,721	(-1.56%)	Direct
06/11/2025	06/12/2025	Schaeffer Dave CHAIRMAN, CEO, AND PRESIDENT CEO Director	Sell	-55,000 @ $48.51	($2,668,135.00)	3,536,721	(-1.53%)	Direct
06/10/2025	06/10/2025	Schaeffer Dave CHAIRMAN, CEO, AND PRESIDENT CEO Director	Sell	-55,000 @ $48.68	($2,677,489.50)	3,591,721	(-1.51%)	Direct

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Cogent Communications Holdings, Inc. - CCOI

Latest data: 6/9/2026 10:01:39 PM

Buy Breakdown

Total $0

Sell Breakdown

Total $97,556,968

Monthly Totals